Supply-pipe connection for bath-cocks.



(ILE-G GLAUBER. SUPPLY PIPE GONNEGTION FOR BATH SOCKS.

APPLIOATION FILED DSG. 2l, 1907.

Patented. May 25, 1909.

45 ling tubes, subject to unirsi sra-'urns nennst nien,

' Josnrn n. Grauens, or CLEVELAND, onro.

specification of Lettere raient.

Patentes nay ec, ieee.A

Application filed December 2l, 19W Serial No. 0152s.l

` To allfwwm Vit may concern:

Be it -known that I, Josnrn H. GLA-onen, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and 5 State of Ghio, have invented certain new and useful. Improvements in Supply-Pipe Connections for-Bath-Cocks, and do declare that the followingis a full, clear, and exact description of the invention, which will enable others skilled in the 'art to which it appeitains to make and use the same.

My invention relates to supply pipe con- I nections for bath cocks and other Water fixe tures, and the. invention consists more particularly in a new and improved tubular connection or shank, as hereinshown and described and .particularly pointed out 'in the claims. 'l

In the accompanying drawings, Figure l is a sectional elevation of a complete connection comprising my new connecting member or sh ank sectioned longitudinally and coupled up in use. Figs. 2, 3, and 4 are longitudinal sectional views of four several modiiicatio'ns of the said connection or shank member, as

hereinafter fully described.

Heretoi'ore all coupling or connecting' tu bles oi members corresponding to shank connecn tion C herein have been made oi cast metal,

so i ar as I knoiv and believe, but such connections, ytubes or Shanks thus constructed of cast metal7 be they ever so Wellniadcgare subject to defects, which are never apparent until the article is machined, completed and tested, thereby causing great loss in time and f ,labor and material. These defects are caused in many ways during casting operations, such as pouring the metal either too hot or too cold into the mold, having dirt in the molten metal, having the cores either too soit or too hard, or ,the cores improperly vented, or cores shifted out of true alinement. Any of the foregoing rniscarriages of casting operations are apt tov produce imperfect coupeakage under high pressures. Such cast Shanks have also other inherent Weaknesses, the result' oi forming an internal tapering seat at one end, and whereby splitting oi' the end and consequent leakage will occur when the coupling nut is overly tightened and the cast tapering head oi' the connecting member is drawn to its seat, especially when imperfect seating between the parts occurs, Now, I have overcome these and kindred objections that have accuundated against cast metal connections or shank members by substituting a drawn been found to be greatly superior to cast connections for .sundry reasons, as Will now appear. Thus, a drawn tube or connection is superior to cast metal on account of being drawn to uniform thickness and strength at all points, and it has no im erfections or flaws here or there in the meta as are liable togbe found in castings andv no leakage under high pressure. Furthermore, these connections are ierfectl'y smooth internally and externally, t us requiring less finishing, and by providing a tapered seat by die Work, as' is my practice, I obtain a much more accurate seat than can be made by machine. Work, ywhich varies. Drawn metal has also greater f tensile strength than cast metal and is readil;

formed into any required sha e, all of whic lends itself to my purpose which involves a construction-of shank member permittin its use 'with perfect safety and sealing e ect With anylfof the varying makes and different forms and styles of coupling members in general use.

Now'f having reference to Fig. i, C reprevrsents one form of the said tubular connecand Where a split is otherwise apt to occur if thc coupling nut is screwed too far inward and When a metallic tapering head is used and brought too tightly to its scat. A yieldmore efficient and safer action is thereby assured than if the seat were solid and unyielding. In Fig. 2 the said connection C2 is sinuinneredge portion 4 of seat 5 is drawn or bent outward at substantially'right angles and forms an annular flange or backing against the Wall of the tube. Otherwise, the said seat 5 is identical with scat 3 iii Fig. 1, and

tions or Shanks, provided with a collar orv immediate end Wherebent back upon itself lar to Fig. l in all particulars except that the `metal tube or pipe therefor, and which has ing seat Will adaptitsel to any irregularities or roughness between the seating parts and al though not as yielding as therein, a certain measure of surrender axially of the tube 'manifestsitself when the coupling nut is screwed up and a metal to metal connection is drawn tightly together.

Fig. 3 shows the tube or connection C3 with a seat-3 as in Fig. l., but instead of having a flange 2 at its other end, it is threaded internally at 7 and has an annular bead 8 near its middle. Said bead may be a separate piece fixed thereon, or as in this instance, developed from Within and standing out upon or from the surface ofthe tube sufficiently to form a rounded shoulder to engage the flange D and whereby said flange may be inclined more or less in respect to the tube and still have a firm bearing engagement therewith all around at bead 8.

In Figs. 1, 2, and 4, the tube is externally threaded at 9 from its seat end a sufficient depth to thread the llange D thereon,

and the said flange has an` inwardly turned,

and internally threaded seating portion d engaged on said external thread 9.

The construction employed in Fig, 3 has the advantage that this particular tube or shell can be used with a plain flange that has no threads therein, thus saving expense in manufacture and adapting the flange to vbe inclined to correspond with the inclination of the wall or body' against which it bears, for example as the inclined wall of a bath tub.

The connection or shank C4 in Fig. 4 is like Fig. 1 in its seat 3 and external thread 9 but has an enlarged or expanded end or head 12, threaded within to make connection with externally threaded male member E, and which enlargement takes'the place of coupling nut A. This shank shows the threads as rolled vor formed out of the metal to provide both an internal and external thread.

In all. the examples of .connections or Shanks shown the tapered seat constitutes v an internal reinforcement for the relatively thin tube at its end to resist the pull and compressive strain of coupling nut L. In

all theigures, said internal portion 'being separated from the main wall the greater part of its length, there is more or less give or springlike effect to said seat which contributes to the making of a better seal, also removes any danger of splitting of 'the outer tube under excessive strain as might occur by drawing up a metal to metal seat too tightly. This reinforcement also p' "1J vides a seating portion, so that said seat,

so-called, vhas a double function .and purpose. The outer threaded circumference of the said connection is necessarily of uniform diameter to provide for adiustable locking connection with the bath tub and to receive nut L. The extreme end of said connection at bend l0 may Valsoubear against a .flat washer within coupling nut L to supplement the seal obtained by the conical seal parts, or even alone if occasion arises Where only a flat washer is to be found or can be used,

In some instances both flange g and gasket H are of metal and integral or rigidly affixed to pipe G, and although those in general use correspond in near degree in size and shape there is also a marked variation .so that perfect seating between two opposite coupling members of two dilllerent makes is the exception rather than the rule.

What I claim isn- 1 A tubular coupling member of drawn. metal of the same diameter end to end having an annular tapered reii'iforcement internally at one end adapted te seat a conical sealing member therein and provided lwith an outwardly turned flange at its opposite end.

2. A shank member for couplings, comprising a drawn metallic tube having a threaded exterior portion and an inturned flange atyits intake end adapted to provide a tapering seat for coupling connections and having its other end outwardly bent to provide an annular coupling llange.

3. A shank member for couplings, comprising a drawn metallic tube having its opposite ends constructed to bedetachably connected with a water fixture and a supply pipe coupling, respectively, the intake end of said tube being bent inwardly with its inner edge bent outwardly against the wall of the tube and the other end of said tube JOSEPH H. GLAUJBER. Witrfjsses: l 'l li. B. Moena, FVT C. Mossen. 

